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|1929||A reading course of instruction in irrigation practice||Wadsworth, H.A.|
|1949||Undepreciated investments in irrigation facilities in Hawaii, 1948 : a supplement to "An irrigation census of Hawaii with some comparisons with continental United States"||Wadsworth, H.A.|
|1933||A historical summary of irrigation in Hawaii||Wadsworth, H.A.|
|1931||Developments in irrigation practices||Wadsworth, H.A.|